1
|
Takemoto K, Nakayama R, Fujimoto K, Suzuki Y, Takarabe Y, Honsho M, Kitahara S, Noguchi Y, Matsui H, Hirose T, Asami Y, Hidaka J, Sunazuka T, Hanaki H. In vitro and in vivo activities of KSP-1007, a broad-spectrum inhibitor of serine- and metallo-β-lactamases, in combination with meropenem against carbapenem-resistant Gram-negative bacteria. Antimicrob Agents Chemother 2024:e0160223. [PMID: 38709005 DOI: 10.1128/aac.01602-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 04/02/2024] [Indexed: 05/07/2024] Open
Abstract
KSP-1007 is a novel bicyclic boronate-based broad-spectrum β-lactamase inhibitor and is being developed in combination with meropenem (MEM) for the treatment of infections caused by carbapenem-resistant Gram-negative bacteria, a global health concern, and here, we describe its characteristics. KSP-1007 exhibited low apparent inhibition constant (Ki app) values against all classes of β-lactamase, including imipenemase types and oxacillinase types from Acinetobacter baumannii. Against 207 Enterobacterales and 55 A. baumannii, including carbapenemase producers, KSP-1007 at fixed concentrations of 4, 8, and 16 µg/mL dose-dependently potentiated the in vitro activity of MEM in broth microdilution MIC testing. The MIC90 of MEM/KSP-1007 at 8 µg/mL against Enterobacterales was lower than those of MEM/vaborbactam, ceftazidime/avibactam, imipenem/relebactam, and colistin and similar to those of aztreonam/avibactam, cefiderocol, and tigecycline. The in vitro activity of MEM/KSP-1007 at ≥4 µg/mL against Enterobacterales harboring metallo-β-lactamase was superior to that of cefepime/taniborbactam. MEM/KSP-1007 showed excellent activity against Escherichia coli with PBP3 mutations and New Delhi metallo-β-lactamase compared to aztreonam/avibactam, cefepime/taniborbactam, and cefiderocol. MEM/KSP-1007 at 8 µg/mL showed greater efficacy against A. baumannii than these comparators except for cefiderocol, tigecycline, and colistin. A 2-fold reduction in MEM MIC against 96 Pseudomonas aeruginosa was observed in combination with KSP-1007. MEM/KSP-1007 demonstrated bactericidal activity against carbapenemase-producing Enterobacterales, A. baumannii, and P. aeruginosa based on minimum bactericidal concentration/MIC ratios of ≤4. KSP-1007 enhanced the in vivo activity of MEM against carbapenemase-producing Enterobacterales, A. baumannii, and P. aeruginosa in murine systemic, complicated urinary tract, and thigh infection models. Collectively, MEM/KSP-1007 has a good profile for treating carbapenem-resistant Gram-negative bacterial infections.
Collapse
Affiliation(s)
- Koji Takemoto
- Drug Research Division, Sumitomo Pharma Co., Ltd., Osaka, Japan
| | - Ryo Nakayama
- Drug Research Division, Sumitomo Pharma Co., Ltd., Osaka, Japan
| | - Koichi Fujimoto
- Drug Research Division, Sumitomo Pharma Co., Ltd., Osaka, Japan
| | - Yumiko Suzuki
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan
| | - Yukiko Takarabe
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Masako Honsho
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan
| | | | - Yoshihiko Noguchi
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan
| | - Hidehito Matsui
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan
| | - Tomoyasu Hirose
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan
| | - Yukihiro Asami
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan
| | - Jun Hidaka
- Drug Research Division, Sumitomo Pharma Co., Ltd., Osaka, Japan
| | - Toshiaki Sunazuka
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan
| | - Hideaki Hanaki
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan
| |
Collapse
|
2
|
Kimishima A, Honsho M, Terai J, Wasuwanich P, Honma S, Matsui H, Hanaki H, Asami Y. Efflux pump inhibitor, phenylalanine-arginine beta-naphthylamide analog potentiates the activity of 5-O-mycaminosyltylonolide for multi-drug resistant Pseudomonas aeruginosa. J Antibiot (Tokyo) 2024; 77:331-333. [PMID: 38467778 DOI: 10.1038/s41429-024-00713-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/01/2024] [Accepted: 02/12/2024] [Indexed: 03/13/2024]
Abstract
The emergence and spread of antimicrobial resistance are global threats. Pseudomonas aeruginosa (P. aeruginosa) is responsible for a substantial proportion of this global health issue because of its intrinsic resistance to many antibiotics due to the impermeability of its outer membrane and its multidrug efflux pump systems. Therefore, therapeutic drugs are limited, and the development of new drugs is extremely challenging. As an alternative approach, we focused on a combinational treatment strategy and found that 5-O-mycaminosyltylonolide (OMT) showed potent antibacterial activity against P. aeruginosa in the presence of an efflux pump inhibitor, phenylalanine-arginine beta-naphthylamide (PAβN). In this report, we prepared a PAβN derivative and compared the potentiation activity of OMT by PAβNs against multidrug-resistant P. aeruginosa clinical isolates.
Collapse
Affiliation(s)
- Aoi Kimishima
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Masako Honsho
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Junsei Terai
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Paul Wasuwanich
- University of Florida College of Medicine, Gainesville, FL, USA
| | - Sota Honma
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Hidehito Matsui
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Hideaki Hanaki
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Yukihiro Asami
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan.
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan.
| |
Collapse
|
3
|
Watanabe Y, Haneda T, Kimishima A, Kuwae A, Suga T, Suzuki T, Iwabuchi Y, Honsho M, Honma S, Iwatsuki M, Matsui H, Hanaki H, Kanoh N, Abe A, Asami Y, Ōmura S. PurA is the main target of aurodox, a type III secretion system inhibitor. Proc Natl Acad Sci U S A 2024; 121:e2322363121. [PMID: 38640341 PMCID: PMC11046696 DOI: 10.1073/pnas.2322363121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Accepted: 03/18/2024] [Indexed: 04/21/2024] Open
Abstract
Anti-microbial resistance (AMR) is one of the greatest threats to global health. The continual battle between the emergence of AMR and the development of drugs will be extremely difficult to stop as long as traditional anti-biotic approaches are taken. In order to overcome this impasse, we here focused on the type III secretion system (T3SS), which is highly conserved in many Gram-negative pathogenic bacteria. The T3SS is known to be indispensable in establishing disease processes but not essential for pathogen survival. Therefore, T3SS inhibitors may be innovative anti-infective agents that could dramatically reduce the evolutionary selective pressure on strains resistant to treatment. Based on this concept, we previously identified a polyketide natural product, aurodox (AD), as a specific T3SS inhibitor using our original screening system. However, despite its promise as a unique anti-infective drug of AD, the molecular target of AD has remained unclear. In this paper, using an innovative chemistry and genetic biology-based approach, we show that AD binds to adenylosuccinate synthase (PurA), which suppresses the production of the secreted proteins from T3SS, resulting in the expression of bacterial virulence both in vitro and in vivo experiments. Our findings illuminate the potential of PurA as a target of anti-infective drugs and vaccination and could open a avenue for application of PurA in the regulation of T3SS.
Collapse
Affiliation(s)
- Yoshihiro Watanabe
- Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Minato-ku, Tokyo108-8641, Japan
| | - Takeshi Haneda
- Laboratory of Microbiology, School of Pharmacy, Kitasato University, Minato-ku, Tokyo108-8641, Japan
| | - Aoi Kimishima
- Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Minato-ku, Tokyo108-8641, Japan
| | - Asaomi Kuwae
- Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Minato-ku, Tokyo108-8641, Japan
| | - Takuya Suga
- Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Minato-ku, Tokyo108-8641, Japan
| | - Takahiro Suzuki
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai980-8578, Japan
| | - Yoshiharu Iwabuchi
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai980-8578, Japan
| | - Masako Honsho
- Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Minato-ku, Tokyo108-8641, Japan
| | - Sota Honma
- Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Minato-ku, Tokyo108-8641, Japan
| | - Masato Iwatsuki
- Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Minato-ku, Tokyo108-8641, Japan
| | - Hidehito Matsui
- Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Minato-ku, Tokyo108-8641, Japan
| | - Hideaki Hanaki
- Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Minato-ku, Tokyo108-8641, Japan
| | - Naoki Kanoh
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai980-8578, Japan
- School of Pharmacy and Pharmaceutical Sciences, and Institute of Medicinal Chemistry, Hoshi University, Shinagawa-ku, Tokyo142-8501, Japan
| | - Akio Abe
- Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Minato-ku, Tokyo108-8641, Japan
| | - Yukihiro Asami
- Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, Minato-ku, Tokyo108-8641, Japan
| | - Satoshi Ōmura
- Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo108-8641, Japan
| |
Collapse
|
4
|
Kimishima A, Suzuki Y, Kosaka S, Honsho M, Honma S, Tsutsumi H, Inahashi Y, Watanabe Y, Nakashima T, Asami Y, Iwatsuki M. Binding Mode-Based Physicochemical Screening Method Using d-Ala-d-Ala Silica Gel and Chemical Modification Approach to Facilitate Discovery of New Macrolactams, Banglactams A and B, from Nonomuraea bangladeshensis K18-0086. ACS Omega 2024; 9:17415-17422. [PMID: 38645345 PMCID: PMC11025092 DOI: 10.1021/acsomega.4c00145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 03/09/2024] [Accepted: 03/19/2024] [Indexed: 04/23/2024]
Abstract
Utilizing a binding mode-based physicochemical screening method using d-Ala-d-Ala silica gel, two new macrolactams, named banglactams A (1) and B (2), were discovered from the culture broth of Nonomuraea bangladeshensis K18-0086. In the course of our investigation, we found that d-Ala-d-Ala silica gel precisely differentiated the chemical structures of banglactams and separated them. However, we were not able to obtain enough of 1 to elucidate the structure due to its instability and insolubility. To overcome this challenge, we chemically modified 1 to improve solubility, enabling us to obtain a sufficient material supply for the indirect determination of the structure. Antibacterial activity evaluation of banglactams revealed that 1 binding to d-Ala-d-Ala silica gel exhibited antibacterial activity against Staphylococcus aureus; however, this was not the case with 2. This research indicates the utility of our original binding mode-based PC screening method, and the combination strategy of PC and chemical modifications led us to discover novel antibacterial compounds.
Collapse
Affiliation(s)
- Aoi Kimishima
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yuki Suzuki
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Shohei Kosaka
- Research
& Development Group, Fuji Silysia Chemical Ltd., 2-1846 Kozoji-cho, Kasugai, Aichi 487-0013, Japan
| | - Masako Honsho
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Sota Honma
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hayama Tsutsumi
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yuki Inahashi
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yoshihiro Watanabe
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Takuji Nakashima
- Research
Organization for Nano and Life Innovation, Waseda University, 513 Wasedatsurumaki-cho, Shinjuku-ku, Tokyo 162-0041, Japan
| | - Yukihiro Asami
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Masato Iwatsuki
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| |
Collapse
|
5
|
Honsho M, Kimishima A, Ikeda A, Iwatsuki M, Nonaka K, Matsui H, Hanaki H, Asami Y, Sunazuka T. The potentiation activity of β-lactam by phomoidrides and oxasetin against methicillin-resistant Staphylococcus aureus. J Antibiot (Tokyo) 2024; 77:185-188. [PMID: 38177698 DOI: 10.1038/s41429-023-00691-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 11/08/2023] [Accepted: 11/15/2023] [Indexed: 01/06/2024]
Abstract
Antimicrobial resistance (AMR) causes a global health threat and enormous damage for humans. Among them, Methicillin-resistant Staphylococcus aureus (MRSA) resistant to first-line therapeutic β-lactam drugs such as meropenem (MEPM) is problematic. Therefore, we focus on combination drug therapy and have been seeking new potentiators of MEPM to combat MRSA. In this paper, we report the isolation of phomoidrides A-D and its new analog, phomoidride H along with a polyketide compound, oxasetin from the culture broth of Neovaginatispora clematidis FKI-8547 strain as potentiators of MEPM against MRSA.
Collapse
Affiliation(s)
- Masako Honsho
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Aoi Kimishima
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Akari Ikeda
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Masato Iwatsuki
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Kenichi Nonaka
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Hidehito Matsui
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Hideaki Hanaki
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Yukihiro Asami
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan.
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan.
| | - Toshiaki Sunazuka
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan.
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan.
| |
Collapse
|
6
|
Taba K, Honsho M, Asami Y, Iwasaki H, Nonaka K, Watanabe Y, Iwatsuki M, Matsui H, Hanaki H, Teruya T, Ishii T. Synergistic effect of secondary metabolites isolated from Pestalotiopsis sp. FKR-0115 in overcoming β-lactam resistance in MRSA. J GEN APPL MICROBIOL 2024; 69:234-238. [PMID: 37302827 DOI: 10.2323/jgam.2023.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Six aromatic secondary metabolites, pestalone (1), emodin (2), phomopsilactone (3), pestalachlorides B (4), C (5), and D (6), were isolated from Pestalotiopsis sp. FKR-0115, a filamentous fungus collected from white moulds growing on dead branches in Minami Daito Island. The efficacy of these secondary metabolites against methicillin-resistant Staphylococcus aureus (MRSA) with and without meropenem (β-lactam antibiotic) was evaluated using the paper disc method and broth microdilution method. The chemical structures of the isolated compounds (1-6) were characterised using spectroscopic methods, including nuclear magnetic resonance and mass spectrometry. All six isolated compounds exhibited synergistic activity with meropenem against MRSA. Among the six secondary metabolites, pestalone (1) overcame bacterial resistance in MRSA to the greatest extent.
Collapse
Affiliation(s)
- Kanako Taba
- Department of Bioscience and Biotechnology, Faculty of Agriculture, University of the Ryukyus
| | - Masako Honsho
- Ōmura Satoshi Memorial Institute, Kitasato University
| | | | | | | | | | | | | | | | | | - Takahiro Ishii
- Department of Bioscience and Biotechnology, Faculty of Agriculture, University of the Ryukyus
| |
Collapse
|
7
|
Kimishima A, Tsuruoka I, Tsutsumi H, Honsho M, Honma S, Matsui H, Sugamata M, Wasuwanich P, Inahashi Y, Hanaki H, Asami Y. A new tetronomycin analog, broad-spectrum and potent antibiotic against drug-resistant Gram-positive bacteria. Chem Biodivers 2024; 21:e202301834. [PMID: 38179845 DOI: 10.1002/cbdv.202301834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 01/04/2024] [Accepted: 01/04/2024] [Indexed: 01/06/2024]
Abstract
We discovered a new tetronomycin analog, C-32-OH tetronomycin (2) from the Streptomyces sp. K20-0247 strain, which produces tetronomycin (1). After NMR analysis of 2, we determined the planar structure. Futhermore, the absolute stereochemistry of 2 was deduced based on the biosynthetic pathway of 1 in the K20-0247 strain and a comparison of experimental electronic circular dichroism (ECD) results of 1 with 2. While 2 exihibits potent antibacterial activity aganist Gram-positive baceria including vancomycin-intermediate Staphylococcus aureus (VISA) strains and vancomycin-resistant Enterococci (VRE), the antibacterial activity of 2 shows 16-32-folds weaker than that of 1 suggesting that the C-34 methyl group in 1 is one of the very important functinal group. Moreover, we evaluated the ionophore activity of 1 and 2 and neither compound shows ionophore activity at reasonable concetrations. Our research suggests that 1 and 2 would have different target(s) from an ionophore mechanism in the antibacterial activity and tetronomycins are promising natural products for broad-spectrum antibiotics.
Collapse
Affiliation(s)
- Aoi Kimishima
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
| | - Iori Tsuruoka
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
| | - Hayama Tsutsumi
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
| | - Masako Honsho
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
| | - Sota Honma
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
| | - Hidehito Matsui
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
| | - Miho Sugamata
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
| | - Paul Wasuwanich
- University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Yuki Inahashi
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
| | - Hideaki Hanaki
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
| | - Yukihiro Asami
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, 108-8641, Tokyo, Japan
| |
Collapse
|
8
|
Kimishima A, Hagimoto D, Honsho M, Sakai K, Honma S, Fuji SI, Iwatsuki M, Tokiwa T, Nonaka K, Chinen T, Usui T, Asami Y. Total Synthesis of Fusaramin, Enabling Stereochemical Elucidation, Structure-Activity Relationship, and Uncovering the Hidden Antimicrobial Activity against Plant Pathogenic Fungi. Org Lett 2024; 26:597-601. [PMID: 38198624 DOI: 10.1021/acs.orglett.3c03792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Fusaramin (1) was isolated as a mitochondrial inhibitor. However, the fungal producer stops producing 1, which necessitates us to supply 1 by total synthesis. We proposed the complete stereochemical structure based on the biosynthetic pathway of sambutoxin. We have established concise and robust total synthesis of 1, enabling us to determine the complete stereochemical structure and to elucidate the structure-activity relationship, and uncover the hidden antiplant pathogenic fungal activity.
Collapse
Affiliation(s)
- Aoi Kimishima
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Daichi Hagimoto
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Masako Honsho
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Katsuyuki Sakai
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Sota Honma
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Shin-Ichi Fuji
- Faculty of Bioresource Sciences, Akita Prefectural University, 241-438 Nakanokaidoubatanishi, Shimoshinjo, Akita, Akita 010-0195, Japan
| | - Masato Iwatsuki
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Toshiyuki Tokiwa
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Kenichi Nonaka
- Faculty of Life and Environmental Sciences, Teikyo University of Science, 2-2-1 Senjusakuragi, Adachi-ku, Tokyo 120-0045, Japan
| | - Takumi Chinen
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Takeo Usui
- Institute of Life and Environmental Science, Teikyo University of Science, 2-2-1 Senjusakuragi, Adachi-ku, Tokyo 120-0045, Japan
| | - Yukihiro Asami
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| |
Collapse
|
9
|
Tahara A, Tani K, Wakatsuki M, Tokiwa T, Higo M, Nonaka K, Hirose T, Hokari R, Ishiyama A, Iwatsuki M, Watanabe Y, Honsho M, Asami Y, Matsui H, Sunazuka T, Hanaki H, Teruya T, Ishii T. A novel aromatic compound from the fungus Synnemellisia sp. FKR-0921. J Antibiot (Tokyo) 2023; 76:706-710. [PMID: 37758818 DOI: 10.1038/s41429-023-00657-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 08/15/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023]
Abstract
The filamentous fungus Synnemellisia sp. strain FKR-0921 was obtained from soil collected on Kume Island, Okinawa. The MeOH extract of FKR-0921 cultured on a solid rice medium yielded a new aromatic compound, synnemellisitriol A (1). The structure, including the absolute configuration, was elucidated by spectroscopic analysis (FT-IR, NMR, and HR-ESI-MS), and the absolute configuration at C-9 of 1 was determined using the modified Mosher's method. Additionally, 1 was evaluated for its biological activities, including metallo-β-lactamase inhibitory activity, type III secretion system inhibitory activity, antimicrobial activity, antimalarial activity, and cytotoxicity.
Collapse
Affiliation(s)
- Arisu Tahara
- Department of Biosciences and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213, Japan
| | - Kazuki Tani
- Department of Biosciences and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213, Japan
| | - Miyu Wakatsuki
- Department of Biosciences and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213, Japan
| | - Toshiyuki Tokiwa
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Mayuka Higo
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Kenichi Nonaka
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Tomoyasu Hirose
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Rei Hokari
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Aki Ishiyama
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Masato Iwatsuki
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Yoshihiro Watanabe
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Masako Honsho
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Yukihiro Asami
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Hidehito Matsui
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Toshiaki Sunazuka
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Hideaki Hanaki
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Toshiaki Teruya
- Faculty of Education, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213, Japan
| | - Takahiro Ishii
- Department of Biosciences and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213, Japan.
| |
Collapse
|
10
|
Kimishima A, Suzuki Y, Kosaka S, Honsho M, Honma S, Sakai K, Tsutsumi H, Inahashi Y, Watanabe Y, Iwatsuki M, Asami Y, Nakashima T. Design and Synthesis of d-Ala-d-Ala Silica Gel for a Binding Mode-Based Physicochemical Screening Method. ACS Omega 2023; 8:39035-39040. [PMID: 37901494 PMCID: PMC10601077 DOI: 10.1021/acsomega.3c03837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 09/20/2023] [Indexed: 10/31/2023]
Abstract
Vancomycin is a potent and broad-spectrum antibiotic that binds to the d-Ala-d-Ala moiety of the growing bacterial cell wall and kills bacteria. This fascinating binding model prompted us to design and synthesize d-Ala-d-Ala silica gels for the establishment of a new physicochemical (PC) screening method. In this report, we confirmed that vancomycin binds to d-Ala-d-Ala silica gel and can be eluted with MeOH containing 50 mM TFA. Finally, d-Ala-d-Ala silica gel enables to purify vancomycin from the culture broth of a vancomycin-producing strain, Amycolatopsis orientalis.
Collapse
Affiliation(s)
- Aoi Kimishima
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yuki Suzuki
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Shohei Kosaka
- Research
& Development Group, Fuji Silysia Chemical
Ltd., 2-1846 Kozoji-cho, Kasugai, Aichi 487-0013, Japan
| | - Masako Honsho
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Sota Honma
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Kazunari Sakai
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hayama Tsutsumi
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yuki Inahashi
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yoshihiro Watanabe
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Masato Iwatsuki
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yukihiro Asami
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Takuji Nakashima
- Research
Organization for Nano and Life Innovation, Waseda University, 513 Wasedatsurumaki-Cho, Shinjuku-Ku, Tokyo 162-0041, Japan
| |
Collapse
|
11
|
Kimishima A, Negami S, Tsuruoka I, Tsutsumi H, Matsui H, Sugamata M, Kondo N, Honsho M, Sakai K, Honma S, Naher K, Watanabe Y, Iwatsuki M, Inahashi Y, Hanaki H, Asami Y. Re-evaluation and a Structure-Activity Relationship Study for the Selective Anti-anaerobic Bacterial Activity of Luminamicin toward Target Identification. ACS Infect Dis 2023; 9:1602-1609. [PMID: 37418000 DOI: 10.1021/acsinfecdis.3c00173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
Luminamicin (1) isolated in 1985, is a macrodiolide compound exhibiting selective antibacterial activity against anaerobes. However, the antibacterial activity of 1 was not fully examined. In this research, re-evaluation of the antibacterial activity of 1 revealed that 1 is a narrow spectrum and potent antibiotic againstClostridioides difficile(C. difficile) and effective against fidaxomicin resistantC. difficilestrain. This prompted us to obtain luminamicin resistantC. difficilestrains for the determination of the molecular target of 1 inC. difficile. Sequence analysis of 1-resistantC. difficileindicated that the mode of action of 1 differs from that of fidaxomicin. This is because no mutation was observed in RNA polymerase and mutations were observed in a hypothetical protein and cell wall protein. Furthermore, we synthesized derivatives from 1 to study the structure-activity relationship. This research indicated that the maleic anhydride and the enol ether moieties seem to be pivotal functional groups to maintain the antibacterial activity againstC. difficileand the 14-membered lactone may contribute to taking an appropriate molecular conformation.
Collapse
Affiliation(s)
- Aoi Kimishima
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Sota Negami
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Iori Tsuruoka
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hayama Tsutsumi
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hidehito Matsui
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Miho Sugamata
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Naozumi Kondo
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Masako Honsho
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Kazunari Sakai
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Sota Honma
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Kamrun Naher
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yoshihiro Watanabe
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Masato Iwatsuki
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yuki Inahashi
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hideaki Hanaki
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yukihiro Asami
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| |
Collapse
|
12
|
Kimishima A, Sakai K, Honsho M, Matsui H, Wasuwanich P, Watanabe Y, Iwatsuki M, Sunazuka T, Arima N, Abe K, Hanaki H, Asami Y. A combination strategy of a semisynthetic macrolide, 5-O-mycaminosyltylonolide with polymyxin B nonapeptide for multi-drug resistance P. aeruginosa. J Antibiot (Tokyo) 2023; 76:499-501. [PMID: 37208456 DOI: 10.1038/s41429-023-00628-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 04/20/2023] [Accepted: 04/20/2023] [Indexed: 05/21/2023]
Abstract
The emergence and spread of antimicrobial resistant pathogens continue to threaten our ability to combat several infections. Among them, Pseudomonas aeruginosa (P. aeruginosa) poses a major threat to human health. P. aeruginosa has intrinsic resistance to many antibiotics due to the impermeability of its outer membrane and a resistance-nodulation-cell division type multidrug efflux pump system. Therefore, only limited therapeutic drugs are effective against the pathogen. To address this problem, we have recently discovered an overlooked anti- P. aeruginosa compound, 5-O-mycaminosyltylonolide (OMT) from the Ōmura Natural Compound library using an efflux pump deletion P. aeruginosa mutant strain, YM64. In this report, we aim to demonstrate the promising potential of OMT for as a novel anti- P. aeruginosa compound and performed combination assays of OMT with polymyxin B nonapeptide, an example of a permeabilizing agent, against multi-drug resistant P. aeruginosa clinical isolates.
Collapse
Affiliation(s)
- Aoi Kimishima
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Kazunari Sakai
- Research Management Department, Kowa Company LTD., 4-13-3 Nihonbashi-honcho, Chuo-ku, Tokyo, 103-8433, Japan
| | - Masako Honsho
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Hidehito Matsui
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Paul Wasuwanich
- University of Florida College of Medicine, Gainesville, FL, USA
| | - Yoshihiro Watanabe
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Masato Iwatsuki
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Toshiaki Sunazuka
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Naoaki Arima
- Research Management Department, Kowa Company LTD., 4-13-3 Nihonbashi-honcho, Chuo-ku, Tokyo, 103-8433, Japan
| | - Kazutoyo Abe
- Research Management Department, Kowa Company LTD., 4-13-3 Nihonbashi-honcho, Chuo-ku, Tokyo, 103-8433, Japan
| | - Hideaki Hanaki
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
- Research Management Department, Kowa Company LTD., 4-13-3 Nihonbashi-honcho, Chuo-ku, Tokyo, 103-8433, Japan
| | - Yukihiro Asami
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan.
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan.
| |
Collapse
|
13
|
Kimishima A, Tsuruoka I, Kanto H, Tsutsumi H, Arima N, Sakai K, Sugamata M, Matsui H, Watanabe Y, Iwatsuki M, Honsho M, Naher K, Inahashi Y, Hanaki H, Asami Y. Rediscovery of Tetronomycin as a Broad-Spectrum and Potent Antibiotic against Drug-Resistant Gram-Positive Bacteria. ACS Omega 2023; 8:11556-11563. [PMID: 37008151 PMCID: PMC10061530 DOI: 10.1021/acsomega.3c00651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 03/01/2023] [Indexed: 06/19/2023]
Abstract
Tetronomycin (1), first isolated from a cultured broth of Streptomyces sp. by Juslen et al. in 1974, is a polycyclic polyether compound. However, the biological activity of 1 has not been thoroughly examined. In this study, we found that 1 exhibits more potent antibacterial activity than two well-known antibacterial drugs (vancomycin and linezolid) and is effective against several drug-resistant clinical isolates including methicillin-resistant Staphylococcus aureus and vancomycin-resistant Enterococci. Furthermore, we reassigned the 13C NMR spectra of 1 and performed a preliminary structure-activity relationship study of 1 to synthesize a chemical probe for target identification, which implied different targets based on its ionophore activity.
Collapse
Affiliation(s)
- Aoi Kimishima
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Iori Tsuruoka
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hiroki Kanto
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hayama Tsutsumi
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Naoaki Arima
- Tokyo
New Drug Research Laboratories, Pharmaceutical Business Unit, Kowa Company, Ltd., 2-17-43 Noguchicho, Higashimurayama, Tokyo 189-0022, Japan
| | - Kazunari Sakai
- Tokyo
New Drug Research Laboratories, Pharmaceutical Business Unit, Kowa Company, Ltd., 2-17-43 Noguchicho, Higashimurayama, Tokyo 189-0022, Japan
| | - Miho Sugamata
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hidehito Matsui
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yoshihiro Watanabe
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Masato Iwatsuki
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Masako Honsho
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Kamrun Naher
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yuki Inahashi
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hideaki Hanaki
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Tokyo
New Drug Research Laboratories, Pharmaceutical Business Unit, Kowa Company, Ltd., 2-17-43 Noguchicho, Higashimurayama, Tokyo 189-0022, Japan
| | - Yukihiro Asami
- Graduate
School of Infection Control Sciences, Kitasato
University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura
Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| |
Collapse
|
14
|
Kimishima A, Sakai K, Honsho M, Wasuwanich P, Matsui H, Watanabe Y, Iwatsuki M, Sunazuka T, Arima N, Abe K, Hanaki H, Asami Y. An efflux pump deletion mutant enabling the discovery of a macrolide as an overlooked anti-P. aeruginosa active compound. J Antibiot (Tokyo) 2023; 76:301-303. [PMID: 36964398 DOI: 10.1038/s41429-023-00607-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/05/2023] [Accepted: 02/10/2023] [Indexed: 03/26/2023]
Abstract
Antimicrobial resistance is a serious, worldwide problem. Pseudomonas aeruginosa (P. aeruginosa) is the pathogen that poses a major threat to human health. However, resistance-nodulation-cell division type multidrug efflux pump systems defend P. aeruginosa from many antibiotics. Therefore, only limited therapeutic drugs are available. In this regard, we screened overlooked anti- P. aeruginosa compounds from the Ōmura Natural Compound library using an efflux pump deletion P. aeruginosa mutant strain, YM64, which led us to find a semisynthetic macrolide, 5-O-mycaminosyltylonolide, whose anti- P. aeruginosa activity against a standard laboratory adapted strain, PAO1, was enhanced by an efflux pump inhibitor, phenylalanine-arginine beta-naphthylamide.
Collapse
Affiliation(s)
- Aoi Kimishima
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Kazunari Sakai
- Research Management Department, Kowa Company LTD., 4-13-3 Nihonbashi-honcho, Chuo-ku, Tokyo, 103-8433, Japan
| | - Masako Honsho
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Paul Wasuwanich
- University of Florida College of Medicine, Gainesville, FL, USA
| | - Hidehito Matsui
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Yoshihiro Watanabe
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Masato Iwatsuki
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Toshiaki Sunazuka
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
| | - Naoaki Arima
- Research Management Department, Kowa Company LTD., 4-13-3 Nihonbashi-honcho, Chuo-ku, Tokyo, 103-8433, Japan
| | - Kazutoyo Abe
- Research Management Department, Kowa Company LTD., 4-13-3 Nihonbashi-honcho, Chuo-ku, Tokyo, 103-8433, Japan
| | - Hideaki Hanaki
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan
- Research Management Department, Kowa Company LTD., 4-13-3 Nihonbashi-honcho, Chuo-ku, Tokyo, 103-8433, Japan
| | - Yukihiro Asami
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan.
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, 108-8641, Japan.
| |
Collapse
|
15
|
Matsui H, Ueda C, Nakajima E, Suzuki Y, Endo H, Sugamata M, Takarabe Y, Yamaguchi Y, Honsho M, Hokari R, Ishiyama A, Imoto Y, Hanaki H. Assessment of environmental surface contamination with SARS-CoV-2 in concert halls and banquet rooms in Japan. J Infect Chemother 2023; 29:604-609. [PMID: 36894016 PMCID: PMC9990880 DOI: 10.1016/j.jiac.2023.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/21/2023] [Accepted: 02/27/2023] [Indexed: 03/09/2023]
Abstract
BACKGROUND Although crowds are considered to be a risk factor for SARS-CoV-2 transmission, little is known about the changes in environmental surface contamination with the virus when a large number of people attend an event. In this study, we evaluated the changes in environmental surface contamination with SARS-CoV-2. METHODS Environmental samples were collected from concert halls and banquet rooms before and after events in February to April 2022 when the 7-day moving average of new COVID-19 cases in Tokyo was reported to be 5000-18000 cases per day. In total, 632 samples were examined for SARS-CoV-2 by quantitative reverse transcription polymerase chain reaction (RT-qPCR) tests, and RT-qPCR-positive samples were subjected to a plaque assay. RESULTS The SARS-CoV-2 RNA detection rate before and after the events ranged from 0% to 2.6% versus 0%-5.0% in environmental surface samples, respectively. However, no viable viruses were isolated from all RT-qPCR-positive samples by the plaque assay. There was no significant increase in the environmental surface contamination with SARS-CoV-2 after these events. CONCLUSIONS These findings revealed that indirect contact transmission from environmental fomite does not seem to be of great magnitude in a community setting.
Collapse
Affiliation(s)
- Hidehito Matsui
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-Ku, Tokyo, 108-8641, Japan
| | - Chihiro Ueda
- The Japan Textile Products Quality and Technology Center, 5-7-3 Yamate-dori, Chuo-Ku, Kobe City, Hyogo, 650-0011, Japan
| | - Eri Nakajima
- The Japan Textile Products Quality and Technology Center, 5-7-3 Yamate-dori, Chuo-Ku, Kobe City, Hyogo, 650-0011, Japan
| | - Yumiko Suzuki
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-Ku, Tokyo, 108-8641, Japan
| | - Harumi Endo
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-Ku, Tokyo, 108-8641, Japan
| | - Miho Sugamata
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-Ku, Tokyo, 108-8641, Japan
| | - Yukiko Takarabe
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-Ku, Tokyo, 108-8641, Japan
| | - Yukie Yamaguchi
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-Ku, Tokyo, 108-8641, Japan
| | - Masako Honsho
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-Ku, Tokyo, 108-8641, Japan
| | - Rei Hokari
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-Ku, Tokyo, 108-8641, Japan
| | - Aki Ishiyama
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-Ku, Tokyo, 108-8641, Japan
| | - Yasuo Imoto
- The Japan Textile Products Quality and Technology Center, 5-7-3 Yamate-dori, Chuo-Ku, Kobe City, Hyogo, 650-0011, Japan
| | - Hideaki Hanaki
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-Ku, Tokyo, 108-8641, Japan.
| |
Collapse
|
16
|
Kimishima A, Ono Y, Sakai K, Sakai K, Honsho M, Naher K, Tokiwa T, Kojima H, Higo M, Nonaka K, Iwatsuki M, Fuji SI, Chinen T, Usui T, Asami Y. A Combination Strategy of Multidrug-Sensitive Budding Yeast and Chemical Modifications Enabling to Find a New Overlooked Antifungal Compound, Sakurafusariene, from In-House Fractionated Library. J Agric Food Chem 2023; 71:3219-3224. [PMID: 36786603 DOI: 10.1021/acs.jafc.2c09015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
In this report, we disclose our discovery of a new antifungal natural product, sakurafusariene (1), from an in-house fractionated library of the culture broth of Fusarium sp. FKI-7550 strain by using a combination strategy of multidrug-sensitive yeast and chemical modification. Throughout our investigation, we encountered challenges in the isolation of natural product 1. A chemical modification strategy via alkylation of 1 allowed for removal of the impurities enabling us to elucidate the structure of 1. Furthermore, we synthesized ester derivatives using a method inspired by the isolation study of 1, which gave us valuable information to understand a preliminary structure-activity relationship against Pyricularia oryzae growth inhibitory activity.
Collapse
Affiliation(s)
- Aoi Kimishima
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yuki Ono
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Katsuyuki Sakai
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Kazunari Sakai
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Masako Honsho
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Kamrun Naher
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Toshiyuki Tokiwa
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hiroki Kojima
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Mayuka Higo
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Kenichi Nonaka
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Masato Iwatsuki
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Shin-Ichi Fuji
- Faculty of Bioresource Sciences, Akita Prefectural University, 241-438 Nakanokaidoubatanishi, Shimoshinjo, Akita, Akita 010-0195, Japan
| | - Takumi Chinen
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Takeo Usui
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Yukihiro Asami
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| |
Collapse
|
17
|
Ikeda A, Ikegaya Y, Honsho M, Matsui H, Nonaka K, Ishii T, Asami Y, Hanaki H, Hirose T, Sunazuka T. A new selective inhibitor for IMP-1 metallo-β-lactamase, 3Z,5E-octa-3,5-diene-1,3,4-tricarboxylic acid-3,4-anhydride. Bioorg Med Chem 2023; 78:117109. [PMID: 36603397 DOI: 10.1016/j.bmc.2022.117109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/15/2022] [Accepted: 11/17/2022] [Indexed: 12/15/2022]
Abstract
3Z,5E-Octa-3,5-diene-1,3,4-tricarboxylic acid-3,4-anhydride (ODTAA, 1) was isolated from Paecilomyces sp. FKI-6801 for its selective IMP-1 MBL inhibitory activity. The first total synthesis of 1 from the commercially available compound was achieved in 9 steps with 28% overall yield. Introduction of catechol to the maleic anhydride of 1 improved the IC50 toward IMP-1 MBL and the inhibitory activity against IMP-1 MBL-producing P. aeruginosa. Treatment of the maleic anhydride scaffold with amine showed that the β-carbonyl-α,β-unsaturated carboxylic acid moiety is required as a pharmacophore for IMP-1 MBL inhibition.
Collapse
Affiliation(s)
- Akari Ikeda
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan; Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Yoshiki Ikegaya
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Masako Honsho
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan; Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Hidehito Matsui
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan; Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Kenichi Nonaka
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan; Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Takahiro Ishii
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan; Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Yukihiro Asami
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan; Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Hideaki Hanaki
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan; Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Tomoyasu Hirose
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan; Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan
| | - Toshiaki Sunazuka
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan; Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan.
| |
Collapse
|
18
|
Hirose T, Ozaki K, Saito Y, Takai-Todaka R, Matsui H, Honsho M, Iwatsuki M, Asami Y, Katayama K, Sunazuka T, Hanaki H, Teruya T. Studies on the Catechin Constituents of Bark of Cinnamomum sieboldii. Chem Pharm Bull (Tokyo) 2023; 71:374-379. [PMID: 37121688 DOI: 10.1248/cpb.c22-00922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Screening for bioactivity related to anti-infective, anti-methicillin-resistant Staphylococcus aureus (MRSA) and anti-viral activity, led us to identify active compounds from a methanol extract of Litsea japonica (Thub.) Juss. and the hot water extract of bark of Cinnamomum sieboldii Meisn (also known as Karaki or Okinawa cinnamon). The two main components in these extracts were identified as the catechin trimers (+)-cinnamtannin B1 and pavetannin B5. Moreover, these extracts exhibited anti-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) activity. The structures of these catechin trimers were previously determined by chemical and spectroscopic methods. Pavetanin B5 has never been reported to be isolated as a pure form and has been obtained as a mixture with another component. Although other groups have reported the putative structure of pavetannin B5, preparation of the methylated derivative of pavetannin B5 in this study allowed us to obtain the pure form for the first time as the undecamethyl derivative and confirm its exact structure. Commercially available (+)-cinnamtannin B1 and aesculitannin B (C2'-epimer of cinnamtannin B1) both of which contained pavetannin B5 as a minor component, and C. sieboldii bark extract (approx. 5/2 mixture of (+)-cinnamtannin B1/pavetannin B5) were assessed for anti-SARS-CoV-2 activity. Both C. sieboldii bark extract and commercially available aesculitannin B showed viral growth inhibitory activity.
Collapse
Affiliation(s)
- Tomoyasu Hirose
- Graduate School of Infection Control Sciences, Kitasato University
- Ōmura Satoshi Memorial Institute, Kitasato University
| | - Kaori Ozaki
- Graduate School of Engineering and Science, University of the Ryukyus
| | - Yukiko Saito
- Graduate School of Engineering and Science, University of the Ryukyus
- Faculty of Education, University of the Ryukyus
| | - Reiko Takai-Todaka
- Graduate School of Infection Control Sciences, Kitasato University
- Ōmura Satoshi Memorial Institute, Kitasato University
| | - Hidehito Matsui
- Graduate School of Infection Control Sciences, Kitasato University
- Ōmura Satoshi Memorial Institute, Kitasato University
| | - Masako Honsho
- Graduate School of Infection Control Sciences, Kitasato University
- Ōmura Satoshi Memorial Institute, Kitasato University
| | - Masato Iwatsuki
- Graduate School of Infection Control Sciences, Kitasato University
- Ōmura Satoshi Memorial Institute, Kitasato University
| | - Yukihiro Asami
- Graduate School of Infection Control Sciences, Kitasato University
- Ōmura Satoshi Memorial Institute, Kitasato University
| | - Kazuhiko Katayama
- Graduate School of Infection Control Sciences, Kitasato University
- Ōmura Satoshi Memorial Institute, Kitasato University
| | - Toshiaki Sunazuka
- Graduate School of Infection Control Sciences, Kitasato University
- Ōmura Satoshi Memorial Institute, Kitasato University
| | - Hideaki Hanaki
- Graduate School of Infection Control Sciences, Kitasato University
- Ōmura Satoshi Memorial Institute, Kitasato University
| | - Toshiaki Teruya
- Graduate School of Engineering and Science, University of the Ryukyus
- Faculty of Education, University of the Ryukyus
| |
Collapse
|
19
|
Watanabe Y, Hachiya K, Ikeda A, Nonaka K, Higo M, Muramatsu R, Noguchi C, Honsho M, Asami Y, Inahashi Y, Hirose T, Matsui H, Sunazuka T, Hanaki H, Ishii T, Teruya T, Hokari R, Ishiyama A, Iwatsuki M. Koshidacins A and B, Antiplasmodial Cyclic Tetrapeptides from the Okinawan Fungus Pochonia boninensis FKR-0564. J Nat Prod 2022; 85:2641-2649. [PMID: 36282784 DOI: 10.1021/acs.jnatprod.2c00719] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Two new antiplasmodial peptides, named koshidacins A (1) and B (2), were discovered from the culture broth of the Okinawan fungus Pochonia boninensis FKR-0564. Their structures, including absolute configurations, were elucidated by a combination of spectroscopic methods and chemical derivatization. Both compounds showed moderate in vitro antiplasmodial activity against Plasmodium falciparum strains, with IC50 values ranging from 17.1 to 0.83 μM. In addition, compound 2 suppressed 41% of malaria parasites in vivo when administered intraperitoneally at a dose of 30 mg/kg/day for 4 days.
Collapse
Affiliation(s)
- Yoshihiro Watanabe
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Kodai Hachiya
- Graduate School of Science, Kitasato University, 1-15-1, Kitazato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan
| | - Akari Ikeda
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Kenichi Nonaka
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Mayuka Higo
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Reiko Muramatsu
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Chikako Noguchi
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Masako Honsho
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yukihiro Asami
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yuki Inahashi
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Tomoyasu Hirose
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hidehito Matsui
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Toshiaki Sunazuka
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hideaki Hanaki
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Takahiro Ishii
- Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan
| | - Toshiaki Teruya
- Graduate School of Engineering and Science, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan
| | - Rei Hokari
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Aki Ishiyama
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Masato Iwatsuki
- O̅mura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| |
Collapse
|
20
|
Ishii T, Tahara A, Taba K, Iwatsuki M, Honsho M, Asami Y, Nonaka K, Hanaki H, Teruya T. A new isomaneonene derivative from the red alga Laurencia cf. mariannensis. J Asian Nat Prod Res 2022:1-7. [PMID: 36200370 DOI: 10.1080/10286020.2022.2130266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/24/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
Determining the structures of new natural products from marine species not only enriches our understanding of the diverse chemistry of these species, but can also lead to the discovery of compounds with novel and/or important biological activities. Herein, we describe the isolation of isomaneonene C (1), a new halogenated C15 acetogenin, and three known compounds, α-snyderol (2), cis-maneonene D (3), and isomaneonene B (4), from the organic extract obtained from the red alga Laurencia cf. mariannensis collected from Iheya Island, Okinawa, Japan. The structures of these secondary metabolites were elucidated spectroscopically. All compounds were inactive at 30 μg/disc against methicillin-resistant Staphylococcus aureus (MRSA) in combination treatment with a β-lactam drug, meropenem.
Collapse
Affiliation(s)
- Takahiro Ishii
- Department of Bioscience and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan
| | - Arisu Tahara
- Department of Bioscience and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan
| | - Kanako Taba
- Department of Bioscience and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan
| | - Masato Iwatsuki
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Masako Honsho
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Yukihiro Asami
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Kenichi Nonaka
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Hideaki Hanaki
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan
| | - Toshiaki Teruya
- Faculty of Education, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan
| |
Collapse
|
21
|
Kimishima A, Hagimoto D, Honsho M, Watanabe Y, Iwatsuki M, Tsutsumi H, Inahashi Y, Naher K, Sakai K, Kuwae A, Abe A, Asami Y. Insights into the structure-activity relationship of a type III secretion system inhibitor, aurodox. Bioorg Med Chem Lett 2022; 69:128779. [PMID: 35545199 DOI: 10.1016/j.bmcl.2022.128779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/28/2022] [Accepted: 05/01/2022] [Indexed: 11/02/2022]
Abstract
Aurodox was originally isolated in 1972 as a linear polyketide compound exhibiting antibacterial activity against Gram-positive bacteria. We have since identified aurodox as a specific inhibitor of the bacterial type III secretion system (T3SS) using our original screening system for inhibition of T3SS-mediated hemolysis in enteropathogenic Escherichia coli (EPEC). In this research, we synthesized 15 derivatives of aurodox and evaluated EPEC T3SS inhibitory activity as well as antibacterial activity against EPEC. One of the derivatives was highly selective for T3SS inhibition, equivalent to that of aurodox, but without exhibiting antibacterial activity (69-fold selectivity). This work revealed the structure-activity relationship for the inhibition of T3SS by aurodox and suggests that the target of T3SS is distinct from the target for antibacterial activity.
Collapse
Affiliation(s)
- Aoi Kimishima
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan; Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Daichi Hagimoto
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan
| | - Masako Honsho
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Yoshihiro Watanabe
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan; Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Masato Iwatsuki
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan; Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Hayama Tsutsumi
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan; Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Yuki Inahashi
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan; Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Kamrun Naher
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Kazunari Sakai
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan; Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Asaomi Kuwae
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan; Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Akio Abe
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan; Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Yukihiro Asami
- Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan; Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan.
| |
Collapse
|
22
|
Kondo N, Sakai K, Kimishima A, Hokari R, Honsho M, Sato M, Naher K, Yuge H, Iwatsuki M, Nonaka K, Asami Y. Confluenine G, a new compound from a basidiomycetous yeast Moesziomyces sp. FKI-9540 derived from the gut of a moth Acherontia lachesis (Lepidoptera, Sphingidae). Biosci Biotechnol Biochem 2022; 86:949-954. [PMID: 35511213 DOI: 10.1093/bbb/zbac062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 04/26/2022] [Indexed: 11/14/2022]
Abstract
Most natural products derived from microorganisms have been sought from actinomycetes and filamentous fungi. As an attempt to develop new microbial resources in the exploratory research for natural products, we searched for new compounds from unexploited microbial taxa presumed to have biosynthetic gene clusters. A new compound confluenine G (1) and a known compound (2Z)-2-octyl-2-pentenedioic acid (2) were isolated from a cultured broth of basidiomycetous yeast, Moesziomyces sp. FKI-9540, derived from the gut of a moth Acherontia lachesis (Lepidoptera, Sphingidae). Based on the results of HR-ESI-MS and NMR analyses, the planar structure of 1 was elucidated. Confluenine G (1) was a new analog of nitrogen-oxidized isoleucine and had rare substructures with oxime and hydroxamic acid in molecule.
Collapse
Affiliation(s)
- Naozumi Kondo
- Graduate School of Infection Control Sciences, Kitasato University, Minato-ku, Tokyo, Japan
| | - Kazunari Sakai
- Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo, Japan
| | - Aoi Kimishima
- Graduate School of Infection Control Sciences, Kitasato University, Minato-ku, Tokyo, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo, Japan
| | - Rei Hokari
- Graduate School of Infection Control Sciences, Kitasato University, Minato-ku, Tokyo, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo, Japan
| | - Masako Honsho
- Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo, Japan
| | - Mai Sato
- School of Science, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Kamrun Naher
- Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo, Japan
| | - Hidetaka Yuge
- School of Science, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Masato Iwatsuki
- Graduate School of Infection Control Sciences, Kitasato University, Minato-ku, Tokyo, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo, Japan
| | - Kenichi Nonaka
- Graduate School of Infection Control Sciences, Kitasato University, Minato-ku, Tokyo, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo, Japan
| | - Yukihiro Asami
- Graduate School of Infection Control Sciences, Kitasato University, Minato-ku, Tokyo, Japan.,Ōmura Satoshi Memorial Institute, Kitasato University, Minato-ku, Tokyo, Japan
| |
Collapse
|
23
|
Kanaida M, Kimishima A, Eguchi S, Iwatsuki M, Watanabe Y, Honsho M, Hirose T, Noguchi Y, Nonaka K, Sennari G, Matsui H, Kaito C, Hanaki H, Asami Y, Sunazuka T. Total Syntheses and Chemical Biology Studies of Hymeglusin and Fusarilactone A, Novel Circumventors of β-Lactam Drug Resistance in Methicillin-Resistant Staphylococcus aureus. ChemMedChem 2021; 16:2106-2111. [PMID: 33783142 DOI: 10.1002/cmdc.202100219] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Indexed: 11/10/2022]
Abstract
Hymeglusin, a previously known eukaryotic hydroxymethylglutaryl-CoA (HMG-CoA) synthase inhibitor, was identified as circumventing the β-lactam drug resistance in methicillin-resistant Staphylococcus aureus (MRSA). We describe the concise total syntheses of a series of natural products, which enabled determination of the absolute configuration of fusarilactone A and provided structure-activity relationship information. Based on previous reports, we speculated that the target protein of this circumventing effect may be MRSA bacterial HMG-CoA synthase (mvaS). We found that this enzyme was dose-dependently inhibited by hymeglusin. Furthermore, overexpression of the MRSA mvaS gene and site-directed mutagenesis studies suggested its binding site and the mechanism of action.
Collapse
Affiliation(s)
- Masahiro Kanaida
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
| | - Aoi Kimishima
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
| | - Shuhei Eguchi
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
| | - Masato Iwatsuki
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
| | - Yoshihiro Watanabe
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
| | - Masako Honsho
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
| | - Tomoyasu Hirose
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
| | - Yoshihiko Noguchi
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
| | - Kenichi Nonaka
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
| | - Goh Sennari
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
| | - Hidehito Matsui
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
| | - Chikara Kaito
- Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Kita-ku, Okayama, 700-8530, Japan
| | - Hideaki Hanaki
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
| | - Yukihiro Asami
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
| | - Toshiaki Sunazuka
- Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
- Ōmura Satoshi Memorial Institute, Kitasato University, 5-9-1 Shirokane Minato-ku, Tokyo, 108-8641, Japan
| |
Collapse
|
24
|
Honsho M, Hashiguchi Y, Ghaedi K, Fujiki Y. Interaction defect of the medium isoform of PTS1-receptor Pex5p with PTS2-receptor Pex7p abrogates the PTS2 protein import into peroxisomes in mammals. J Biochem 2010; 149:203-10. [DOI: 10.1093/jb/mvq130] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
25
|
Honsho M, Fujiki Y. Topogenesis of peroxisomal membrane protein requires a short, positively charged intervening-loop sequence and flanking hydrophobic segments. study using human membrane protein PMP34. J Biol Chem 2001; 276:9375-82. [PMID: 11121399 DOI: 10.1074/jbc.m003304200] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Human 34-kDa peroxisomal membrane protein (PMP34) consisting of 307 amino acids was previously identified as an ortholog of, or a similar protein (with 27% identity) to the, 423-amino acid-long PMP47 of the yeast Candida boidinii. We investigated membrane topogenesis of PMP34 with six putative transmembrane segments, as a model peroxisomal membrane protein. PMP34 was characterized as an integral membrane protein of peroxisomes. Transmembrane topology of PMP34 was determined by differential permeabilization and immunofluorescent staining of HeLa cells ectopically expressing PMP34 as well as of Chinese hamster ovary-K1 expressing epitope-tagged PMP34. As opposed to PMP47, PMP34 was found to expose its N- and C-terminal parts to the cytosol. Various deletion variants of PMP34 and their fusion proteins with green fluorescent protein were expressed in Chinese hamster ovary-K1 and were verified with respect to intracellular localization. The loop region between transmembrane segments 4 and 5 was required for the peroxisome-targeting activity, in which Ala substitution for basic residues abrogated the activity. Three hydrophobic transmembrane segments linked in a flanking region of the basic loop were essential for integration of PMP34 to peroxisome membranes. Therefore, it is evident that the intervening basic loop plus three transmembrane segments of PMP34 function as a peroxisomal targeting and topogenic signal.
Collapse
Affiliation(s)
- M Honsho
- Department of Biology, Faculty of Sciences, Kyushu University Graduate School, Fukuoka 812-8581, Japan
| | | |
Collapse
|
26
|
Otera H, Harano T, Honsho M, Ghaedi K, Mukai S, Tanaka A, Kawai A, Shimizu N, Fujiki Y. The mammalian peroxin Pex5pL, the longer isoform of the mobile peroxisome targeting signal (PTS) type 1 transporter, translocates the Pex7p.PTS2 protein complex into peroxisomes via its initial docking site, Pex14p. J Biol Chem 2000; 275:21703-14. [PMID: 10767286 DOI: 10.1074/jbc.m000720200] [Citation(s) in RCA: 176] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
In mammals, two isoforms of the peroxisome targeting signal (PTS) type 1 receptor Pex5p, i.e. Pex5pS and Pex5pL with an internal 37-amino acid insertion, have previously been identified. Expression of either type of Pex5p complements the impaired PTS1 import in Chinese hamster ovary pex5 mutants, but only Pex5pL can rescue the PTS2 import defect noted in a subgroup of pex5 mutants such as ZP105. In this work, we found that Pex5pL directly interacts with the PTS2 receptor Pex7p, carrying its cargo PTS2 protein in the cytosol. Pex5pL, but not Pex5pS, mediated the binding of PTS2 protein to Pex14p by translocating Pex7p, demonstrating that Pex5pL plays a pivotal role in peroxisomal PTS2 import. Pex5p was localized mostly in the cytosol in wild-type CHO-K1 and Pex14p-deficient mutant cells, whereas it accumulated in the peroxisomal remnants in cell mutants defective in Pex13p or the RING family peroxins such as Pex2p and Pex12p. Furthermore, overexpression of Pex14p, but not Pex10p, Pex12p, or Pex13p, caused accumulation of Pex5p in peroxisomal membranes, with concomitant interference with PTS1 and PTS2 import. Therefore, Pex5p carrying the cargoes most likely docks with the initial site (Pex14p) in a putative import machinery, subsequently translocating to other components such as Pex13p, Pex2p, Pex10p, and Pex12p.
Collapse
Affiliation(s)
- H Otera
- Department of Biology, Kyushu University Graduate School of Science, Fukuoka 812-8581, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Honsho M, Tamura S, Shimozawa N, Suzuki Y, Kondo N, Fujiki Y. Mutation in PEX16 is causal in the peroxisome-deficient Zellweger syndrome of complementation group D. Am J Hum Genet 1998; 63:1622-30. [PMID: 9837814 PMCID: PMC1377633 DOI: 10.1086/302161] [Citation(s) in RCA: 136] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Peroxisome-biogenesis disorders (PBDs), including Zellweger syndrome (ZS), are autosomal recessive diseases caused by a deficiency in peroxisome assembly as well as by a malfunction of peroxisomes, among which>10 genotypes have been identified. We have isolated a human PEX16 cDNA (HsPEX16) by performing an expressed-sequence-tag homology search on a human DNA database, by using yeast PEX16 from Yarrowia lipolytica and then screening the human liver cDNA library. This cDNA encodes a peroxisomal protein (a peroxin Pex16p) made up of 336 amino acids. Among 13 peroxisome-deficiency complementation groups (CGs), HsPEX16 expression morphologically and biochemically restored peroxisome biogenesis only in fibroblasts from a CG-D patient with ZS in Japan (the same group as CG-IX in the United States). Pex16p was localized to peroxisomes through expression study of epitope-tagged Pex16p. One patient (PBDD-01) possessed a homozygous, inactivating nonsense mutation, C-->T at position 526 in a codon (CGA) for 176Arg, that resulted in a termination codon (TGA). This implies that the C-terminal half is required for the biological function of Pex16p. PBDD-01-derived PEX16 cDNA was defective in peroxisome-restoring activity when expressed in the patient's fibroblasts. These results demonstrate that mutation in PEX16 is the genetic cause of CG-D PBDs.
Collapse
Affiliation(s)
- M Honsho
- Department of Biology, Faculty of Science, Kyushu University, Fukuoka, Japan
| | | | | | | | | | | |
Collapse
|
28
|
Kuroda R, Ikenoue T, Honsho M, Tsujimoto S, Mitoma JY, Ito A. Charged amino acids at the carboxyl-terminal portions determine the intracellular locations of two isoforms of cytochrome b5. J Biol Chem 1998; 273:31097-102. [PMID: 9813010 DOI: 10.1074/jbc.273.47.31097] [Citation(s) in RCA: 89] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Outer mitochondrial membrane cytochrome b5 (OMb), which is an isoform of cytochrome b5 (cyt b5) in the endoplasmic reticulum, is a typical tail-anchored protein of the outer mitochondrial membrane. We cloned cDNA containing the complete amino acid sequence of OMb and found that the protein has no typical structural feature common to the mitochondrial targeting signal at the amino terminus. To identify the region responsible for the mitochondrial targeting of OMb, various mutated proteins were expressed in cultured mammalian cells, and the subcellular localization of the expressed proteins was analyzed. The deletion of more than 11 amino acid residues from the carboxyl-terminal end of OMb abolished the targeting of the protein to the mitochondria. When the carboxyl-terminal 10 amino acids of OMb were fused to the cyt b5 that was previously deleted in the corresponding 10 residues, the fused protein localized in the mitochondria, thereby indicating that the carboxyl-terminal 10 amino acid residues of OMb have sufficient information to transport OMb to the mitochondria. The replacement of either of the two positively charged residues within the carboxyl-terminal 10 amino acids by alanine resulted in the transport of the mutant proteins to the endoplasmic reticulum. The mutant cyt b5, in which the acidic amino acid in its carboxyl-terminal end was replaced by basic amino acid, could be transported to the mitochondria. It would thus seem that charged amino acids in the carboxyl-terminal portion of these proteins determine their locations in the cell.
Collapse
Affiliation(s)
- R Kuroda
- Department of Chemistry, Faculty of Science, Kyushu University, Fukuoka 812-8581, Japan
| | | | | | | | | | | |
Collapse
|
29
|
Abstract
Cytochrome b5 (b5), a typical tail-anchored protein of the endoplasmic reticulum (ER) membrane, is composed of three functionally different domains: amino-terminal heme-containing catalytic, central hydrophobic membrane-anchoring, and carboxyl-terminal ER-targeting domains (Mitoma, J., and Ito, A. (1992) EMBO J. 11, 4197-4203). To analyze the potential retention signal of b5, mutant proteins were prepared to replace each domain with natural or artificial sequences, and subcellular localizations were examined using immunofluorescence microscopy and cell fractionation. The transmembrane domain functioned to retain the cytochrome in the ER, and the mutation of all or part of the transmembrane domain with an artificial hydrophobic sequence had practically no effect on intracellular distribution of the cytochrome. However, when the transmembrane domain was extended systematically, a substantial portion of the protein with the domain of over 22 amino acid residues leaked from the organelle. Thus, the transmembrane length functions as the retention signal. When cytochromes with mutations at the carboxyl-terminal end were overexpressed in cells, a substantial portion of the protein was transported to the plasma membrane, indicating that the carboxyl-terminal luminal domain also has a role in retention of b5 in the ER. Carbohydrate moiety of the glycosylatably-mutated b5 was sensitive to endoglycosidase H but resistant to endoglycosidase D. Therefore, both transmembrane and carboxyl-terminal portions seems to function as the static retention signal.
Collapse
Affiliation(s)
- M Honsho
- Department of Chemistry, Faculty of Science, Kyushu University, Fukuoka 812-8581, Japan
| | | | | |
Collapse
|
30
|
Abstract
Cytochrome b5 is tail-anchored in the ER membrane and is composed of three functionally different portions; amino-terminal heme-containing catalytic, central hydrophobic membrane-anchoring, and carboxy-terminal ER-targeting portions [Mitoma, J. and Ito, A. (1992) EMBO J. 11, 4197-4203]. In situ topology of cytochrome b5 in the ER-membrane was studied using immunofluorescence microscopy. Antibodies were raised against the hydrophilic portion (anti-b5) and the carboxy-terminal seven amino acid residues (anti-peptide) of cytochrome b5 and used for detection of the cytochrome in COS cells which expressed the rat cytochrome. Anti-b5 antibody detected the cytochrome in a reticular staining pattern characteristic of the ER, even when the cell plasma membrane was permeabilized with Streptolysin O. The anti-peptide displayed a fluorescence signal only with Triton-permeabilized cells in which the antibody was able to penetrate into the ER lumen. In a double immuno-staining of the cell using the antipeptide antibody and the antibody against protein disulfide isomerase, both antibodies showed the same staining pattern in the presence of either Triton X-100 or Streptolysin O. The results indicate that the carboxy-terminal hydrophilic stretch is exposed to the luminal side. Cytochrome b5 was tagged with c-myc peptide at the carboxy-terminal end and the topology of the c-myc peptide was analyzed by the same method. Anti c-myc monoclonal IgG detected the tagged cytochrome b5 only after Triton treatment of the fixed cells, suggesting that the addition of c-myc peptide to the carboxy-terminal end does not affect insertion or orientation of the cytochrome in the ER membrane.
Collapse
Affiliation(s)
- R Kuroda
- Department of Chemistry, Faculty of Science, Kyushu University, Fukuoka
| | | | | | | | | |
Collapse
|